Simple Network Management Protocol (SNMP) Number Spaces

Last Updated: 2016-05-03
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Registries included below

Security Models
Message Processing Models
SnmpEngineID Formats
SnmpAuthProtocols
SnmpPrivProtocols
SNMP Transport Domains

Security Models

Registration Procedure(s)

Standards Action

Reference

Note

The SnmpSecurityModel TEXTUAL-CONVENTION values managed by IANA are in
the range from 0 to 255 inclusive, and are reserved for standards-
track Security Models.  If this range should in the future prove
insufficient, an enterprise number can be allocated to obtain an
additional 255 possible values.

There are several values of securityModel defined for use with SNMP or
reserved for use with supporting MIB objects.  They are as follows:

Available Formats

CSV

Value	Description	Reference
0	reserved for 'any'	[RFC3411]
1	reserved for SNMPv1	[RFC3411]
2	reserved for SNMPv2c	[RFC3411]
3	User-Based Security Model (USM)	[RFC3411]
4	Transport Security Model (TSM)	[RFC5591]
5-255	Unassigned

Message Processing Models

Registration Procedure(s)

Standards Action

Reference

Note

The SnmpMessageProcessingModel TEXTUAL-CONVENTION values managed by
IANA are in the range 0 to 255, inclusive.  Each value uniquely
identifies a standards-track Message Processing Model of the Message
Processing Subsystem within a SNMP Management Architecture.

Should this range prove insufficient in the future, an enterprise
number may be obtained for the standards committee to get an
additional 256 possible values.

Available Formats

CSV

Value	Description	Reference
0	reserved for SNMPv1	[RFC3411]
1	reserved for SNMPv2c	[RFC3411]
2	reserved for SNMPv2u and SNMPv2*	[RFC3411]
3	reserved for SNMPv3	[RFC3411]
4-255	Unassigned

SnmpEngineID Formats

Expert(s)

Unassigned

Reference

[RFC3411][RFC5343]

Available Formats

CSV

Range	Registration Procedures	Note
1-127	Specification Required
128-255	Enterprise-specific	IANA does not assign

Format	Description	Reference
0	Reserved	[RFC3411]
1	IPv4 address	[RFC3411]
2	IPv6 address	[RFC3411]
3	MAC address	[RFC3411]
4	administratively assigned text	[RFC3411]
5	administratively assigned octets	[RFC3411]
6	local engine	[RFC5343]
7-127	Unassigned
128-255	Enterprise-specific	[RFC3411]

SnmpAuthProtocols

Registration Procedure(s)

Standards Action

Reference

Note

IETF standard protocols for SNMPv3 authentication and privacy

The MIB module defined in [RFC3411] defines this OBJECT-IDENTITY
as registration points.

Available Formats

CSV

Value	Description	Reference
0	Reserved	[RFC3411]
1	usmNoAuthProtocol - no authentication	[RFC3414]
2	usmHMACMD5AuthProtocol - HMAC-MD5-96	[RFC3414]
3	usmHMACSHAAuthProtocol - HMAC-SHA-96	[RFC3414]
4	usmHMAC128SHA224AuthProtocol	[RFC7860]
5	usmHMAC192SHA256AuthProtocol	[RFC7860]
6	usmHMAC256SHA384AuthProtocol	[RFC7860]
7	usmHMAC384SHA512AuthProtocol	[RFC7860]

SnmpPrivProtocols

Registration Procedure(s)

Standards Action

Reference

Note

IETF standard protocols for SNMPv3 authentication and privacy

The MIB module defined in [RFC3411] defines this OBJECT-IDENTITY
as registration points.

Available Formats

CSV

Value	Description	Reference
0	Reserved	[RFC3411]
1	usmNoPrivProtocol - no privacy	[RFC3414]
2	usmDESPrivProtocol - CBC-DES	[RFC3414]
3	Reserved
4	usmAesCfb128Protocol - AES-CFB-128	[RFC3826]

SNMP Transport Domains

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

[RFC2578][RFC3417][RFC5590]

Note

Each domain is assigned a MIB-defined OID under snmpDomains.

Available Formats

CSV

Prefix	SnmpDomains	Reference
udp	snmpUDPDomain	[RFC3417][RFC5590]
clns	snmpCLNSDomain	[RFC3417][RFC5590]
cons	snmpCONSDomain	[RFC3417][RFC5590]
ddp	snmpDDPDomain	[RFC3417][RFC5590]
ipx	snmpIPXDomain	[RFC3417][RFC5590]
prxy	rfc1157Domain	[RFC3417][RFC5590]
ssh	snmpSSHDomain	[RFC5592]
tls	snmpTLSTCPDomain	[RFC6353]
dtls	snmpDTLSUDPDomain	[RFC6353]